CN212480180U

CN212480180U - Maintain deashing mechanism of high temperature gate valve on line

Info

Publication number: CN212480180U
Application number: CN202021023957.5U
Authority: CN
Inventors: 肖安俊; 方中旺; 胡继雄; 杨劲松
Original assignee: Hubei Jingsheng Machinery Equipment Manufacturing Co ltd
Current assignee: Hubei Jingsheng Machinery Equipment Manufacturing Co ltd
Priority date: 2020-06-05
Filing date: 2020-06-05
Publication date: 2021-02-05
Anticipated expiration: 2030-06-05

Abstract

The utility model relates to a high temperature gate valve technical field discloses an online maintenance high temperature gate valve's deashing mechanism, including the valve body, seted up the flue gas passageway in the valve body, the valve body bottom is equipped with the ash bucket that is linked together with the flue gas passageway, and the valve body is equipped with mobilizable flashboard, the sealed piece of deashing. The utility model has the advantages of it is following and effect: the tip of drive slip table sets up the sealed piece of deashing, plays thermal-insulated and deashing effect, avoids the high temperature flue gas direct contact drive slip table in the valve body, and the deashing is sealed the piece and is pushing the ash-slag of slide rail, opening diapire department along with drive slip table motion in-process in, accomplishes the deashing, and maintainer regular clearance ash bucket can. When the flashboard is maintained, the driving system drives the flashboard to be separated from the valve body, maintenance personnel maintain the flashboard outside the valve body, production of a high-temperature furnace connected with a pipeline can be independently carried out, and online maintenance of the high-temperature gate valve is achieved.

Description

Maintain deashing mechanism of high temperature gate valve on line

Technical Field

The utility model relates to a high temperature valve technical field, in particular to maintain deashing mechanism of high temperature gate valve on line.

Background

The high-temperature gate valve is a key control device which is effectively used as a heat source in the metallurgical industrial production, and is also indispensable necessary equipment for meeting the environmental protection requirement and improving the industrial production benefit. The equipment is mainly used for controlling heat in the process of conveying hot gas in a pipeline of a blast furnace combustion system. As the combustion system produced by the metallurgical industry mostly uses coal dust as fuel, the temperature generated by combustion is very high, which is generally required to be about 1000-1200 ℃, and the high-temperature flue gas after the coal dust is combusted also contains SO2 and NOx strong corrosive oxides, the control pipeline under the working condition is mostly conveyed in a mode of adding a lining refractory material to a metal shell. The gate valve, which is a line control device, is required to be opened and closed. Therefore, the high-temperature gate valve (high-temperature balancer) is generally manufactured by adopting a metal steel plate as a valve body shell, lining refractory materials, adopting heat-resistant high-strength steel bars as an internal grid framework and pouring refractory materials, and the gate plate can resist high temperature and also resist hydration corrosion of sulfur and nitrogen oxides. However, the gate plate is not produced in a fixed assembly line by pouring refractory materials, the gate plate pouring process is not only physically changed but also accompanied by chemical change, the control parameters of the pouring process are difficult to achieve accurately, so that the gate plate after pouring often cannot meet the reliable working requirements of the product, the gate plate is frequently subjected to the rapid change action of the environmental temperature in the using process, the gate plate is easy to crack and crack, dropped ash residues are accumulated in the valve body, the furnace is required to be stopped for production during cleaning, after a pipeline is cooled, the pipeline is then put into the valve body for cleaning and maintenance, and ash removal is very inconvenient.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an online maintenance high temperature gate valve's deashing mechanism has the convenient effect of deashing.

The above technical purpose of the present invention can be achieved by the following technical solutions: the utility model provides an online maintenance high temperature gate valve's deashing mechanism, includes the valve body, seted up the flue gas passageway in the valve body, the valve body bottom be equipped with the ash bucket that the flue gas passageway is linked together, the valve body be equipped with mobilizable flashboard, follow the flashboard motion is used for promoting the lime-ash to reach the sealed piece of deashing in the ash bucket.

By adopting the technical scheme, the flashboard in the valve body moves to open and close the high-temperature gate valve, and after ash formed by thermal shock damage and thermal shock fracture of the flashboard falls, the ash cleaning sealing block pushes the ash into the ash hopper along with the movement of the flashboard to finish ash cleaning.

The utility model discloses a further set up to: the ash bucket diapire can be dismantled and be connected with the clearance apron.

Through adopting above-mentioned technical scheme, the lime-ash accumulation in the ash bucket is more back, dismantles the clearance apron, discharges the lime-ash in the ash bucket.

The utility model discloses a further set up to: the confession is seted up to the valve body lateral wall the opening that the flashboard passed, the valve body is fixed with the slide rail supporting rack, the slide rail supporting rack is fixed with and passes open-ended slide rail, slide rail sliding connection has the drive slip table, the flashboard with the drive slip table links to each other.

The utility model discloses a further set up to: the ash removal sealing block is fixed at one end part of the driving sliding table close to the valve body.

The utility model discloses a further set up to: the ash removal sealing block is fixed at the lower end of the flashboard.

The utility model discloses a further set up to: the opening diapire the slide rail is less than flue gas passageway, deashing seal block bottom with the slide rail, the opening diapire contacts and realizes sealedly, ash bucket upper end opening is located opening diapire department.

The utility model discloses a further set up to: the slide rail supporting rack rotates and is connected with the drive shaft, the drive shaft is fixed with the drive wheel, actuating mechanism is installed to drive slip table bottom, actuating mechanism atress in the drive wheel drives the drive slip table and follows the slide rail motion, high temperature gate valve deashing mechanism still is including being used for the drive the rotatory denso of drive shaft.

By adopting the above technical solution, the electric device, i.e. the electric driving device, is also referred to as a valve electric device in the valve industry.

The utility model discloses a further set up to: the valve body is provided with two flashboards, the slide rail is provided with two driving sliding tables, and the number of the ash removal sealing blocks is two.

The utility model discloses a further set up to: the ash bucket is positioned in the middle of the valve body.

Through adopting above-mentioned technical scheme, two flashboards in the valve body support tightly after being close to each other, block the flue gas passageway in the valve body, and the deashing sealed piece is pushed the lime-ash into the ash bucket along with the flashboard motion.

The utility model has the advantages that:

the end of the driving sliding table is provided with an ash cleaning sealing block, the ash cleaning sealing block plays roles of heat insulation and ash cleaning, high-temperature flue gas in the valve body is prevented from directly contacting with the driving sliding table, ash falling off by the flashboard drops to the bottom wall of the opening and the sliding rail, the ash cleaning sealing block pushes ash into the ash hopper along with the driving sliding table in the motion process, ash cleaning is completed, and maintenance personnel can clean the ash hopper regularly.

And secondly, the slide rail supporting frame is adopted to support the slide rail, the driving sliding table and the flashboard, the driving sliding table moves along the slide rail to drive the flashboard to move, the driving of the flashboard is rigid, the control is convenient, and the action is accurate. Because the high temperature flashboard is placed on the drive sliding table, the problem of slag falling caused by cracks generated during high-temperature work does not exist, and the smoke channel cannot be blocked. Even if the high-temperature gate valve does not act for a long time, dust-containing particles in the smoke fall to the movement channel of the driving sliding table, the dust can be pushed into a dust hopper arranged on the valve body by the dust cleaning sealing block fixed at the front end of the driving sliding table when the valve is closed, and then the dust is periodically discharged. The driving system drives the flashboard to the outer sides of the two sides of the valve body, and maintenance personnel can maintain and repair the flashboard.

The flashboard penetrates through the opening in the side wall of the valve body and then is positioned on the outer side, and maintenance personnel can maintain the flashboard; the ash bucket is located the valve body bottom, lies in the valve body below during clearance ash bucket, and the flashboard is maintained the side and is regularly cleared up the ash bucket in two directions, mutually independent, mutually noninterfere satisfies the flashboard and independently maintains.

The high-temperature gate valve is installed on the horizontal pipeline when in use, when the flashboard needs to be maintained, the driving system drives the flashboard to be separated from the valve body, maintenance personnel maintain the flashboard, and the flashboard is located on the two horizontal side faces of the valve body during maintenance, so that the influence on the safety of the maintenance personnel caused by the conditions of high-temperature smoke rising, high-temperature smoke falling and the like can be avoided. Because the flashboard has been broken away from flue gas passageway this moment, the high temperature furnace production that links to each other with the pipeline can be carried out independently completely, realizes the online maintenance to high temperature gate valve.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic view of the closed state of embodiment 1.

Fig. 2 is a schematic view of the positional relationship among the drive slide table, the drive shaft, and the drive wheel in embodiment 1.

Fig. 3 is a schematic view of the on state of embodiment 1.

FIG. 4 is a schematic view of the maintenance state of embodiment 1.

In the figure, 1, a valve body; 11. a flue gas channel; 12. an opening; 2. a shutter plate; 3. a slide rail; 4. a slide rail support frame; 5. mounting; 6. an ash hopper; 61. cleaning the cover plate; 7. a drive shaft; 71. a drive wheel; 8. driving the sliding table; 81. a sliding table sliding block; 82. and a dust cleaning sealing block.

Detailed Description

The technical solution of the present invention will be clearly and completely described below with reference to the specific embodiments. It is obvious that the described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Example 1: the utility model provides an ash removal mechanism of maintaining high temperature gate valve on line, as shown in fig. 1, fig. 2, includes valve body 1, is fixed in the slide rail supporting rack 4 of valve body 1, has seted up flue gas passageway 11 in the valve body 1, and valve body 1 and flue gas passageway 11 are equal level and are placed. The side wall of the valve body 1 is provided with an opening 12 which penetrates through the side wall of the valve body 1, and the smoke channel 11 is communicated with the opening 12. The slide rail 3 is fixed on the slide rail support frame 4, and the slide rail 3 penetrates through the opening 12 on one side and then penetrates out of the opening 12 on the other side.

As shown in fig. 2, 3 and 4, the slide rail 3 is slidably connected with two driving sliding tables 8, one end of each driving sliding table 8, which is close to the inside of the valve body 1, is fixed with an ash removal sealing block 82, the upper end of each driving sliding table 8 is fixed with a plurality of sliding table sliding blocks 81, the valve body 1 is provided with two gate plates 2, and the two gate plates 2 are respectively fixed with the sliding table sliding blocks 81 on the two driving sliding tables 8. The bottom wall of the opening 12 and the bottom wall of the sliding rail 3 are lower than the flue gas channel 11, the bottom of the ash removal sealing block 82 is in contact with the sliding rail 3 and the bottom wall of the opening 12 to realize sealing, two side walls of the ash removal sealing block 82 are in contact with two side walls of the opening 12 to realize sealing, and the upper end of the ash removal sealing block 82 is in contact with the lower end of the flashboard 2 to realize. An ash bucket 6 is arranged in the middle of the lower portion of the valve body 1, and an opening 12 in the upper end of the ash bucket 6 is located on the bottom wall of the opening 12, so that the ash bucket 6 is communicated with the flue gas channel 11. A cleaning cover plate 61 is connected with the lower part of the ash bucket 6 through screw threads.

The slide rail supporting frame 4 is provided with two driving shafts 7 which are rotatably connected with the slide rail supporting frame and electric fittings 5 which respectively drive the two driving shafts 7 to rotate, and the two driving shafts 7 are respectively in one-to-one correspondence with the two driving sliding tables 8. The driving wheel 71 is fixed on the driving shaft 7, and the driving mechanism is installed at the bottom of the driving sliding table 8. The driving wheel 71 is a gear, and the driving mechanism is a rack, and the gear is meshed with the rack. The electric device 5 drives the driving shaft 7 to rotate, and the driving wheel 71 on the driving shaft 7 drives the driving mechanism and the driving sliding table 8 to move along the sliding rail 3.

The working principle is as follows: the high-temperature flue is connected with the high-temperature furnace, the high-temperature gate valve is arranged on the horizontal high-temperature flue through a flange, and the valve body 1 and the flue gas channel 11 are both in a horizontal state. The two gate plates 2 are driven to approach each other and then abut against each other, the two ash removal sealing blocks 82 move towards the opening 12 at the upper end of the ash bucket 6, ash residues on the bottom wall of the sliding rail 3 and the opening 12 are pushed into the ash bucket 6, the gate plates 2 cut off the flue gas channel 11 in the valve body 1, and high-temperature flue gas cannot pass through; two flashboards 2 are driven to be away from each other, a flue gas channel 11 in the valve body 1 is communicated, and high-temperature flue gas can circulate. The flashboard 2 is driven to move out of the side wall of the valve body 1, and maintenance personnel can maintain the flashboard 2. The maintenance personnel regularly open the cleaning cover plate 61 to discharge the ash in the ash bucket 6.

Example 2: the difference between the ash removal mechanism for on-line maintenance of a high-temperature gate valve and embodiment 1 is that an ash removal sealing block 82 is fixed to the lower end of a gate plate 2. The driving wheel 71 and the driving mechanism are in pin tooth transmission, the driving wheel 72 is a pin gear, and the driving mechanism is a pin rack fixed at the bottom of the driving sliding table 8.

Claims

1. The utility model provides an online maintenance high temperature gate valve's deashing mechanism, includes valve body (1), set up flue gas passageway (11), its characterized in that in valve body (1): the ash removal valve is characterized in that an ash bucket (6) communicated with the flue gas channel (11) is arranged at the bottom of the valve body (1), the valve body (1) is provided with a movable gate plate (2) and an ash removal sealing block (82) moving along with the gate plate (2) and used for pushing ash to the ash bucket (6).

2. The ash removal mechanism for the on-line maintenance of the high-temperature gate valve according to claim 1, wherein: the bottom wall of the ash bucket (6) is detachably connected with a cleaning cover plate (61).

3. The ash removal mechanism for the on-line maintenance of the high-temperature gate valve according to claim 1, wherein: the confession has been seted up to valve body (1) lateral wall opening (12) that flashboard (2) passed, valve body (1) is fixed with slide rail supporting rack (4), slide rail supporting rack (4) are fixed with and pass slide rail (3) of opening (12), slide rail (3) sliding connection has drive slip table (8), flashboard (2) with drive slip table (8) link to each other.

4. The ash removal mechanism for the on-line maintenance of the high-temperature gate valve according to claim 3, wherein: the ash cleaning sealing block (82) is fixed at one end part of the driving sliding table (8) close to the interior of the valve body (1).

5. The ash removal mechanism for the on-line maintenance of the high-temperature gate valve according to claim 3, wherein: the ash cleaning sealing block (82) is fixed at the lower end of the gate plate (2).

6. The ash removal mechanism for the on-line maintenance of the high-temperature gate valve according to claim 3, wherein: the bottom wall of the opening (12) is lower than the flue gas channel (11) through the sliding rail (3), the bottom of the ash cleaning sealing block (82) is in contact with the sliding rail (3) and the bottom wall of the opening (12) to realize sealing, and the opening (12) at the upper end of the ash hopper (6) is located at the bottom wall of the opening (12).

7. The ash removal mechanism for the on-line maintenance of the high-temperature gate valve according to claim 3, wherein: slide rail supporting rack (4) rotate and are connected with drive shaft (7), drive shaft (7) are fixed with drive wheel (71), actuating mechanism is installed to drive slip table (8) bottom, actuating mechanism atress in drive wheel (71) drive slip table (8) are followed slide rail (3) motion, high temperature gate valve deashing mechanism is still including being used for the drive the rotatory denso (5) of drive shaft (7).

8. The ash removal mechanism for the on-line maintenance of the high-temperature gate valve according to claim 3, wherein: the valve body (1) is provided with two flashboards (2), the slide rail (3) is provided with two driving sliding tables (8), and the number of the ash cleaning sealing blocks (82) is two.

9. The ash removal mechanism for the on-line maintenance of the high-temperature gate valve according to claim 1 or 8, wherein: the ash bucket (6) is positioned in the middle of the valve body (1).